groundwater

Rocky Mountain Power reported the toxins to state regulators this month.

No terms of the settlement have been revealed, and the parties are required for file a dismissal pleading by Feb. 21.

A portion of the money can be used by the state for enforcement, corrective action and cost recovery.

They allege gas development near their property contaminated their groundwater.

Selenium can break off from a shale formation beneath much of Natrona County and get into groundwater.

A landmark federal study on hydraulic fracturing, or fracking, shows no evidence that chemicals from the natural gas drilling process moved up to contaminate drinking water at a western Pennsylvania drilling site